Asforcontactinformation,acompany’sphysicaladdress,zipcode,telephonenumberandwebsiteareoftencontainedinitsprofile.
Asforcontactinformation,acompany’sphysicaladdress,zipcode,telephonenumberandwebsiteareoftencontainedinitsprofile.
考虑如下数据表和查询。如何添加索引能提高查询速度?() A: 给ID添加索引 B: 给NAME和ADDRESS1添加索引 C: 给ID添加索引,然后给NAME和ZIPCODE分别添加索引 D: 给ZIPCODE和NAME添加索引 E: 给ZIPCODE添加全文检索
考虑如下数据表和查询。如何添加索引能提高查询速度?() A: 给ID添加索引 B: 给NAME和ADDRESS1添加索引 C: 给ID添加索引,然后给NAME和ZIPCODE分别添加索引 D: 给ZIPCODE和NAME添加索引 E: 给ZIPCODE添加全文检索
下面的XML片断中结构完整的是()。 A: <customername=”<xml>.con”><address>123MainStreet></address></customer> B: <customer><name>Joe’sXMLWorks</name><address>NewYork</costomer> C: <customertype=extemal><name>PartnersUnlimited</name></customer> D: <customername=”JohnDoe”><address>123MainStreet</address><zipcode=”01837”/></customer>
下面的XML片断中结构完整的是()。 A: <customername=”<xml>.con”><address>123MainStreet></address></customer> B: <customer><name>Joe’sXMLWorks</name><address>NewYork</costomer> C: <customertype=extemal><name>PartnersUnlimited</name></customer> D: <customername=”JohnDoe”><address>123MainStreet</address><zipcode=”01837”/></customer>
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